What do you get from the gnarly monster?

When you se e the head look like a retard and it comes to get you jump on his head and it will say thump do it until they all go down

The entrance to the Hydra cave is underwater in the maze in Poseidon's realm. Swim across the top, down the right side, and then left across the bottom. The "gnarly monster" is the five-headed Hydra....

The entrance to the Hydra cave is underwater in the maze in Poseidon's realm. Swim across the top, down the right side, and then left across the bottom.Defeat the Hydra by letting a head attack you,...

When you get close to the Hydra in its cave, it will try to hit you with one of its five heads. Before it hits you, jump up, then come down on top of the head. This will knock it out. Repeat this for...

Swim below the Hydra and click on it, and you should get a scale.